Vlastra has appeared on many television shows and films such as The New Avengers, The Littlest Hobo, Choices, and Spearfield's Daughter. He also played Fire Chief Wickersham in Secret Window and Booker in The Day After Tomorrow.
His work as a voice actor includes Splinter Cell, Heavy Metal, The Mysterious Cities of Gold. He also narrated all Canada Vignettes films and several other films for The National Film Board of Canada.
Assassin's Creed works
- Assassin's Creed: Revelations (2011) - Manuel Palaiologos
- Assassin's Creed III (2012) - John Parker, additional voices
- Assassin's Creed: Origins (2017) - Eudoros